What is the arithmetic mean of the following numbers?
8, 1, 2, 6, 1, 4

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

What is 1.5% of 120 or what number is 1.5% of 120

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]